function checkField(action){
  if (action == "bog" )
	makeBogForm();
  else if (action == "woon")
  	makeWoonForm();
}


function makeBogForm(){
	document.getElementById("citydiv").style.display = "none";
	document.getElementById('bogcitydiv').style.display = "block";
	document.getElementById("typediv").style.display = "none";
	document.getElementById("bogtypediv").style.display = "block";
	document.inschrijfformulier.type_id.disabled = true;
	document.inschrijfformulier.livingspace_from.disabled = true;
	document.inschrijfformulier.livingspace_to.disabled = true;
	document.inschrijfformulier.rooms_from.disabled = true;
	document.inschrijfformulier.rooms_to.disabled = true;
}
function makeWoonForm(){
	document.getElementById("citydiv").style.display = "block";
	document.getElementById("bogcitydiv").style.display = "none";
	document.getElementById("typediv").style.display = "block";
	document.getElementById("bogtypediv").style.display = "none";
	document.inschrijfformulier.type_id.disabled = false;
	document.inschrijfformulier.livingspace_from.disabled = false;
	document.inschrijfformulier.livingspace_to.disabled = false;
	document.inschrijfformulier.rooms_from.disabled = false;
	document.inschrijfformulier.rooms_to.disabled = false;
}